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package com.oea.servlets;

import com.google.gson.Gson;
import com.oea.hibernate.entities.Faculty_Subject;
import com.oea.hibernate.entities.Schedule;
import com.oea.hibernate.entities.Subject;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author DELL
 */
public class ChangeTimetableAjaxActionForSubject extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            Gson gson = new Gson();
            String id = request.getParameter("id");
            String days = id.substring(8, 9);

            int day = Integer.parseInt(days);
            System.out.println("day id " + day);
            String lecnos = id.substring(10, 11);
            int lecno = Integer.parseInt(lecnos);
            System.out.println("lecno id " + lecno);
            String sub_id = request.getParameter("subid");
            Long subid = Long.parseLong(sub_id);
            System.out.println("subject id " + subid);

            List<Faculty_Subject> faculties = Faculty_Subject.getAllFacultiesForSubject(subid);
            for (Faculty_Subject f : faculties) {
                System.out.println("faculties " + f.getFid());
                f.setFaculty();

                System.out.println("subjects " + f.getFaculty().getFname());

            }

            String json = gson.toJson(faculties);
            out.println(json);

        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
